The following table lists the default ports used by the various Flume services. (Note: Neither of these services are used in a standard HDP
installation.)

Table 1.3. Flume Service Ports

Service

Servers

Default Ports Used

Protocol

Description

Need End User Access?

Configuration Parameters

Flume

Flume Agent

41414

TCP

Flume performance metrics in JSON format

Yes (client API needs)

master.port.client in accumulo-site.xml

Flume

HDFS Sink

8020

TCP

Communication from Flume into the Hadoop cluster's NameNode

Yes (client API needs)

tserver.port.client in accumulo-site.xml

Flume

HDFS Sink

9000

TCP

Communication from Flume into the Hadoop cluster's NameNode

No

gc.port.client in accumulo-site.xml

Flume

HDFS Sink

50010

TCP

Communication from Flume into the Hadoop cluster's HDFS DataNode

No

Flume

HDFS Sink

50020

TCP

Communication from Flume into the Hadoop cluster's HDFS DataNode

No

Flume

HDFS Sink

2181

TCP

Communication from Flume into the Hadoop cluster's ZooKeeper

No

Flume

HDFS Sink

16020

TCP

Communication from Flume into the Hadoop cluster's HBase Regionserver

No

Flume

All Other Sources and Sinks

Variable

Variable

Ports and protocols used by Flume sources and sinks

No

Refer to the flume configuration file(s) for ports actually in use. Ports in
use are specificed using the port keyword in the Flume configuration file.
By default Flume configuration files are located in /etc/flume/conf on Linux
and c:\hdp\flume-1.4.0.x.y.z\conf on Windows